Illegal migration is a common phenomenon around the world. It is most prevalent between regions and countries with relatively great difference in national income and economic activities. Taiwan has enjoyed economic prosperity since early years, and people are generally well-off. With a significantly higher living standard than mainland China, and consistently increasing cross-strait marriages, many people from mainland China who have no means to improve their economic condition in China, try to migrate to Taiwan illegally by means of ¡§fraudulent marriage¡¨ to solve their own economic problems. Public policies of a country are problem-oriented. Major objective of the public policies is to solve social problems. In order to prevent people from mainland China from engaging in illegal acts in Taiwan by means of fraudulent marriage, and hence endangering Taiwan society, the Taiwan government has instituted the interview policy. The interview policy is undeniably effective in deterring the mainland people from engaging in illegal acts in Taiwan by means of fraudulent marriage, but it has also created annoyance for the genuinely married couples across the straits. The author¡¦s motivation and aim of the study is to explore the possibility of relaxing the interview policy or bundling it with other auxiliary measures, so that both legal marriage and human rights could be protected. After understanding the system, regulations and result of the interview policy, the researcher then discussed the policy from the view-point of the policy stakeholders. Subjects of study are the policy stakeholders residing in Kaohsiung City. Samples were taken by non-probability sampling (purposive sampling) from the Taiwan spouses, mainland spouses, team members of the Kaohsiung Special Operation Brigade of National Immigration Agency actually executing the interview policy and the mainland citizens involved in fraudulent marriage who are staying in asylums, with whom interviews were conducted. The study found that the interview policy did have the effect of preventing mainland citizens from coming to Taiwan by means of fraudulent marriage when the present point of time (2011) was compared with 2003 when the policy was first launched. However, as time goes by, and as the cross-strait relationship unwinds, fraudulent marriage is no longer the only channel that ill-minded mainland people may come to Taiwan, as they have diversified channels now, such as business visit, traveling and the Taiwan individual travel scheme for mainland travelers, etc. Moreover, the interview policy only found 2 problematic cross-strait marriages out of 1000 cases in 2010, while the other 998 cases were normal cross-strait marriages, but still were affected and bothered by the interview policy. Therefore, whereas most interviewees agreed that the interview policy should be kept, they did believe that the policy should be appropriately relaxed. ¡§Immigrant management¡¨ or ¡§immigrant counseling¡¨ is an acceptable approach to strengthening the ¡§investigation¡¨ of mainland spouses. Therefore, for the interview policy, it is proposed in the study that: 1. existing interview policy for mainland spouses should be relaxed; and 2. visit and investigation of mainland spouses should be strengthened after they come to Taiwan.